Installation guide

Converting a Single-Host Conﬁguration to a Dual-Host Conﬁguration C–19

C.2.4 Power up the SF200 Storage Array

Now that the SF200 storage array has been converted to dual-host and

labeled you are ready to apply power.

CAUTION

Ensure that the ac power switch on each SF72 storage enclosure

and magazine tape subsystem installed is in the off position.

1. At the rear of the storage array, turn the 881 power controller on.

Ensure that the BUS/OFF/ON switch is in the down position.

2. At the rear of the storage array, turn on each magazine tape

subsystem installed (if present). Power up position 5 and then 6.

Observe the front panels for any fault indications.

3. At the rear of the storage array, turn on each SF72 storage enclosure

starting with position 1 and following in numerical order.

4. Depress each drive dc power switch for each SF72 storage enclosure.

Start with position 1 and continue in numerical order.

5. Observe the OCP indicators. Refer to Figure C–9.

a. Check that the TERM PWR LED (located behind the door of the

OCP) is on for all positions installed.

b. Check that the SPLIT LED (located behind the door of the OCP)

is off for all positions.

c. Ensure that all DSSI ID switches on all OCPs are set to left-rear

(ID=1), left-front (ID=2), right-front (ID=3), and right-rear (ID=4).

6. Depress the Ready button on the OCP. Refer to Figure C–9. The green

Ready LED will ﬂicker then light steady once the ISE is on-line.